That is, in a sense, the whole point. What was once a circular enclosure, the kind of roughly ringfort-shaped earthwork that dots the Irish countryside in its thousands, has been entirely erased, levelled to make way for a bungalow built on the adjacent ground. The site is not visible at ground level. A visitor standing in the undulating pasture here would have no way of knowing that anything ever existed beneath the grass.

Circular enclosures of this type are among the most common archaeological features in Ireland, typically dating from the early medieval period, roughly the fifth to the twelfth centuries. They functioned most often as enclosed farmsteads, a bank and ditch marking the boundary of a family's living and working space. Thousands survive in some form across the country; many more have been lost to agriculture and development over the centuries. The Glenreagh Beg example was recorded on the Ordnance Survey six-inch map edition of 1952 to 1953, which means it was still identifiable as a feature in the landscape at that point, at least from aerial or cartographic evidence. By the time Jean Farrelly and Caimin O'Brien compiled the Archaeological Inventory of County Tipperary, published in 2002, the site had already been levelled, roughly twenty years before that publication, in connection with the construction of a bungalow immediately to the north-east.

What remains is the map entry, the grid reference, and the knowledge that something once occupied this particular hillside slope. The erasure is quiet and undramatic, the ordinary result of land use rather than any single dramatic event, but it points to how much of Ireland's early medieval landscape persists only in old cartography and inventory records long after the physical evidence has gone.